But sometimes the REMOTE_ADDR does not return the IP address of the client, and the main reason behind is to use the proxy. In such type of situation, we will try another way to get the real IP address of the user in PHP.
Thank you. Sure, you can store the client IP address in the database. You need to use MySQLi or PDO to create a connection and insert it in a table. -crud-with-mysql/ refer this article for insert part.
PHP Client IP
Note: Under Apache 2, UseCanonicalName = On and ServerName must be set. Otherwise, this value reflects the hostname supplied by the client, which can be spoofed. It is not safe to rely on this value in security-dependent contexts.
Your web server access logs capture the IP address of your load balancer because the load balancer establishes the connection to your instances. To capture the IP addresses of clients in your web server access logs, configure the following:
When the client connects to a web server the IP address gets assigned by using one of the HTTP headers. RFC 7239 standard specifies the Forwarded headers. Many proxy servers and caching engines use also nonstandard but adopted by practice the X-Forwarded-For HTTP header field to assign a comma and space-separated values of IP addresses (first one is the originating client).
I just ran into a situation for a Drupal/PHP client where I wanted to log some access information. There was some unusual access activity on the website, and I want to log IP addresses and URLs for a few days.
FWIW, if you ever need to log information like this, here's a trimmed-down version of some PHP code I wrote for a Drupal 6 website. I'm basically just getting the client IP address (the user's IP address), the Drupal URI they're accessing, and some date/time information:
This protocol is supported by nearly every PHP IDE (including Visual Studio Code and PhpStorm), and also by text-based editors. There isalso a simple Command Line Debug Client available as part of the Xdebug project,but it is strongly recommended that you use an IDE for debugging. (An overview of third party clients is available further downthis page.)
If PHP/Xdebug run on a different machine in the same sub-net, and you runyour browser on the same host as your IDE, then you set thexdebug.discover_client_host setting to 1. Xdebug will then use theHTTP headers to find out the IP address of the host that initiated thedebugging request, and use that IP address to connect to. This is a commonway of set-up if you are sharing a development server among you and your teammates.
In more complex set-ups you need to configure the host and port that Xdebugconnects to yourself. With xdebug.client_host you can select the IP or hostnameof the machine that runs your IDE, and with xdebug.client_port the TCP port.Make sure that the host running PHP/Xdebug can connect to your IDE with theconfigured IP address and port, and that there is no firewall or other softwareblocking an incoming connection.
This is an incomplete list of third-party clients, both free and commercial.Please refer to the original authors of these tools for documentation andsupport:Eclipse plugin (IDE).
KDevelop (IDE: Linux (KDE); Open Source).
ActiveState's Komodo (IDE: Windows, Linux, Mac; Commercial).
NetBeans (IDE: Windows, Linux, Mac OS X and Solaris).
Devsense's PHP Tools for Visual Studio (Plugin; Commercial).
JetBrains' PhpStorm (IDE; Commercial).
SublimeTextXdebug (Plugin for Sublime Text 2 and 3, Open Source).
VIM plugin (Plugin; Open Source).
VS Code plugin (Plugin; Open Source).
If xdebug.client_discovery_header is configured to be a non-empty string, then thevalue is used as key in the $_SERVER superglobal array to determinewhich header to use to find the IP address or hostname to use for 'connectingback to'. This setting is only used in combination withxdebug.discover_client_host and is otherwise ignored.
It is possible to configure multiple fallbacks by using a comma separatedlist of values. For example if you want to use HTTP_FORWARD_HOSTfirst, and then also want to check REMOTE_ADDR, then you setxdebug.client_discovery_header toHTTP_FORWARD_HOST,REMOTE_ADDR.
If you have logging enabled, and set the xdebug.log_level setting to10, then Xdebug will list every header, the header value, and theused header (if any) when attempting to find the IP address to connect backto.Xdebug 3.2 and later no longer fall back to the $_SERVER['HTTP_X_FORWARDED_FOR'] and$_SERVER['REMOTE_ADDR'] header values by default. If you wantthese headers to be used as well, you specifically need to add these to thelist of headers, by setting xdebug.client_discovery_header toYOUR_OWN_HEADER,HTTP_X_FORWARDED_FOR,REMOTE_ADDR.
Configures the IP address or hostname where Xdebug will attempt to connect to when initiating adebugging connection. This address should be the address of the machine where your IDE or debuggingclient is listening for incoming debugging connections.
On non-Windows platforms, it is also possible to configure a Unix domain socket which is supported byonly a select view debugging clients. In that case, instead of the hostname or IP address, useunix:///path/to/sock.
If xdebug.discover_client_host is enabled then Xdebug will only use the value of this setting incase Xdebug can not connect to an IDE using the information it obtained from HTTP headers. In thatcase, the value of this setting acts as a fallback only.
The port to which Xdebug tries to connect on the remote host. Port9003 is the default for both Xdebug and the Command Line Debug Client.As many clients use this port number, it is best to leave this settingunchanged.
If enabled, Xdebug will first try to connect to the client that made theHTTP request. It checks the $_SERVER['HTTP_X_FORWARDED_FOR'] and$_SERVER['REMOTE_ADDR'] variables to find out which hostname or IPaddress to use.
Controls which IDE Key Xdebug should pass on to the debugging client orproxy. The IDE Key is only important for use with the DBGp Proxy Tool,although some IDEs are incorrectly picky as to what its value is.
It includes the opening time (2020-09-02 07:19:09.616195), theIP/Hostname and port Xdebug is trying to connect to(localhost:9003), and whether it succeeded (Connected toclient). The number in brackets ([2693358]) is theProcess ID.
Normally, Xdebug tries to start a debugging session at the start of the request. If a debugging client is not listening at that point, then Xdebug does not try to re-establish a connection during the remainder of the request.
In the situation where one long running PHP process handles multiple tasks, perhaps from a queue, calling xdebug_connect_to_client() can then be used to re-try to establish a connection for a specific worker job.
Have you enabled exception logging? This should enable logging of the client IP and other request context data for all exceptions. If you want logging for those exact errors you will need to build your own ErrorHandler.
If the field is omitted, the default value is null. However, due to backwards compatibility concerns, certain platforms (in particular JavaScript) have a different default value for "auto". SDKs and other clients should not rely on this behavior and should set IP addresses or "auto" explicitly.
When client connects to a webserver the IP address can get assigned by using oneof the HTTP headers. RFC 7239 standardspecifies the Forwarded headers. Many proxy servers and caching engines usealso non standard but adopted by practice the X-Forwarded-ForHTTP header field to assign a comma and space separated values of IP addresses(first one is the originating client).
If a client is behind a proxy then the proxy might set the X_FORWARDED_FORHTTP header field, which can differ from the one in $_SERVER['REMOTE_ADDR'].If you are saving the IP address to the database, saving both values is a goodidea. In some cases checking for presence of both X_FORWARDED_FOR andHTTP_X_FORWARDED_FOR is important.
For instance, a client IP may have various log attributes, such as clientIP, client_ip_address, remote_address, client.ip, and so on. The execution time of a request may be referred to as exec_time, request_latency, request.time_elapsed, and so on.
hello,You need to set trusted proxy. In that case getClientIp() will use X-Forwarder-For header to get client IP address. -http: //symfony .com/doc/master/components/http_foundation/trusting_proxies.html
$_SERVER['REMOTE_ADDR'] may not actually contain real client IP addresses, as it will give you a proxy address for clients connected through a proxy, for example. That may well be what you really want, though, depending what your doing with the IPs. Someone's private RFC1918 address may not do you any good if you're say, trying to see where your traffic is originating from, or remembering what IP the user last connected from, where the public IP of the proxy or NAT gateway might be the more appropriate to store.
If the function described above works perfectly on your development server, it may no longer work for your production server if it is located behind a proxy or a firewall. As its name indicates, a proxy acts as a client for your server and replaces the real client's IP address. Hence the function we have written above will return the proxy's IP address and not the visitor's.
If you have been a web developer for quite some time and are in the habit of sifting through your visitor and access logs, depending on your situation you may tend to notice that you do not always get the right client IP address from your users.
Same as web pages, web services also sometime require client authentication. The most frequent way of authentication is the use of WS-Security Username token which authenticate clients based on the username and passwords. There can be situations where clients need to be authenticated based on its IP or its domain.
127.0.0.1ConclusionComing towards the end of the above article, you saw how easy it is to PHP get IP address of both the client and the server. Moreover, you can now easily deal with the clients that stand behind a proxy server while avoiding all kinds of security risks. Still, if you are left with any doubts and confusion, then read the points stated below: 2ff7e9595c
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